347L stainless steel welded pipe

Advanced Manufacturing Capabilities

As a leading manufacturer of 347L stainless steel welded pipe, we employ two primary production methods:

• ERW (Electric Resistance Welding) Process:
  • Sizes from 1/4" OD to 12" OD
  • Thickness up to 10mm
  • Manufactured from premium strip/coils
  • Meets ASTM A312 specifications
• Large Diameter Fabrication:
  • Sizes from 6" NB to 36" NB
  • Custom plate rolling and welding
  • 100% X-Ray weld inspection
  • Compliant with ASTM A358 Class I to V

Comprehensive Product Range

Our stainless steel welded pipe inventory includes:

• Size Range: 1/2" to 48" diameter
• Schedule Options:
  • SCH 5S
  • SCH 10S
  • SCH 40S (STD)
  • SCH 80S (XS)
  • SCH 160
  • XXS
• Standard 20ft lengths available
• Various finish options:
  • Electropolished
  • Decorative
  • Standard industrial

Applications and Specifications

Our 347L stainless steel welded pipe serves diverse industries:

• Crude oil processing
• Chemical manufacturing
• Petrochemical facilities
• Construction projects
• Food processing plants

International Standards Compliance:

• ASTM A312/ASME SA312
• ASTM A358/ASME SA358
• ASTM A554
• ASTM A249
• Equivalent grades:
  • WNR 1.4550
  • UNS S34700
  • AISI 347L

With daily production capacity exceeding 25-30 tons and comprehensive inventory including various stainless steel welded pipe grades (304/304L, 316L, 321/321H, Duplex, 201), we ensure reliable supply and competitive pricing for domestic and international customers.